A vertical furnace structure with adaptive mixed charge addition

Abstract

The present invention discloses a self-adaptive vertical furnace structure for adding mixed charge, and relates to the technical field of copper smelting. The charge of a traditional vertical furnace includes crude copper and broken copper. The crude copper has high impurities and slow fluidity, while the broken copper is easy to sink to the bottom directly after being thrown into the furnace. The traditional vertical furnace cannot handle crude copper and broken copper, resulting in a large amount of crude copper being lost and unable to be fully utilized. The present invention blows air into the connecting pipe through an air inlet pipe, changes the flow direction through a fixed ball inside an air outlet seat, generates a uniform upward airflow to slow down the falling speed of the crude copper, and uses a floating component to drive the movable sleeve to rotate and rise along a spiral groove through the airflow, and when it reaches the top, it hits the crude copper, causing it to move actively, accelerating the smelting process, introducing oxygen, accelerating the reaction, and making the crude copper fully smelted in the furnace to avoid falling quickly to the bottom of the furnace, effectively solving various problems encountered in the traditional smelting process, and realizing an efficient and stable metal smelting process.

Description

Technical Field

[0001] The invention relates to the technical field of copper smelting, in particular to a vertical furnace structure capable of adaptively adding mixed charge. Background Art

[0002] A vertical furnace is a device used to smelt metals. Its working principle is to carry out the smelting process in a vertical direction. Vertical furnaces are widely used in the metallurgical industry. Vertical furnaces usually consist of a vertical cylindrical structure. Inside the vertical furnace, the metal and non-metal parts of the ore are separated through high-temperature combustion and reduction reactions to obtain pure metal.

[0003] In this regard, the patent document with publication number CN203683636U discloses a new type of vertical furnace for roasting vanadium coal ore composite additive charge, including a furnace body, which is divided into three temperature zones from feeding to discharging, namely a preheating section, a high-temperature roasting section and a cooling section, wherein a roasting furnace is provided in the center of the high-temperature roasting section, a fire chamber is provided between the roasting furnace and the high-temperature roasting section, and burners are evenly distributed on the roasting furnace, the fire chamber is connected to the roasting furnace through the burners, and the gas pipe and the air pipe are connected to the fire chamber once they pass through the high-temperature roasting section. The utility model has a simple structure and is easy to operate. The structure can fully oxidize the vanadium coal ore, and the excess energy can be fully utilized, thereby greatly improving the production efficiency.

[0004] In this regard, the patent document with publication number CN206447914U discloses a copper smelting vertical furnace waste slag recovery device, including a shell, a water inlet pipe, a slag discharge pipe, a support base, a transmission gear roller and a recovery barrel, the shell is provided with a feed trough, and a medicine barrel is fixedly installed above the shell, the medicine barrel is provided with a dosing pipe, the water inlet pipe and the slag discharge pipe are both connected to the shell, the support base is provided with a shell, the motor is connected to the stirring shaft, and the stirring shaft is evenly distributed with stirring blades, the stirring shaft is fixedly installed with a gear, the left end of the transmission gear roller is meshed with the gear, the two ends of the rotating shaft are fixed on the shell, and the rotating shaft is provided with a bubble scraper plate, a filter is provided inside the recovery barrel, and the recovery barrel is connected to the shell through a connecting pipe, and a valve is fixedly installed on the connecting pipe. The labor intensity of the operators in the entire flotation process of the copper smelting vertical furnace waste slag recovery device is low, which greatly improves the work efficiency and has a good use effect.

[0005] The traditional vertical furnace charge contains blister copper and copper scraps. The blister copper has high impurities and slow fluidity, while the copper scraps tend to sink directly to the bottom after being thrown into the furnace. The traditional vertical furnace cannot handle blister copper and copper scraps, resulting in a large amount of blister copper being lost and unable to be fully utilized.

[0006] In view of the above problems, a vertical furnace structure with adaptive mixed charge addition is proposed. Summary of the invention

[0007] The object of the present invention is to provide a vertical furnace structure with adaptive mixed charge addition, which solves the problem in the background technology that the loss of crude copper cannot be fully utilized.

[0008] To achieve the above object, the present invention provides the following technical solution: a mixed charge adding adaptive vertical furnace structure, comprising a blast chamber, a furnace chamber is embedded in the blast chamber, a combustion chamber is connected to the top of the furnace chamber, and a partition net is embedded in the top opening of the combustion chamber;

[0009] A circulation component is connected to the inner wall of the furnace bin, and the circulation component includes a connecting block, one side of the connecting block is connected to an air outlet seat, a plurality of air filling ports are provided at the bottom end of the air outlet seat, a fixing ball is installed at the bottom end of the air outlet seat, a connecting pipe is embedded in the air filling port, an end of the connecting pipe away from the air filling port is connected to an air inlet pipe, the air inlet pipe is wrapped around the outer surface of the furnace bin, an air inlet pipe is embedded in the furnace bin, and a filter is embedded in the top surface of the air outlet seat;

[0010] The top of the filter is connected to a floating component, which includes a vertical rod, the top of the vertical rod is connected to a floating rod, a spiral groove is provided on the surface of the floating rod, a drop groove is also provided on the surface of the floating rod, the drop groove runs through the interior of the spiral groove, an impact block is provided at the top of the drop groove, a support block is connected to the bottom of the impact block, a toggle piece is connected to the bottom of the drop groove, a movable sleeve is sleeved on the outer surface of the floating rod, the protrusion of the inner wall of the movable sleeve is embedded in the interior of the spiral groove, and a blade is fixedly connected to the outer surface of the movable sleeve.

[0011] Preferably, the connecting block is used to fix the air outlet seat at the center position of the internal space of the furnace chamber, the outer surface of the connecting block is an arched portion, and the inner surface of the connecting block is an arc-shaped portion, the arched portion and the arc-shaped portion are connected together, the middle position of the arc-shaped portion is bent upward, and the two sides are concave downward.

[0012] Preferably, the top end diameter of the air outlet seat is large, and the bottom end diameter is small, and the internal space of the air outlet seat decreases step by step from top to bottom.

[0013] Preferably, the fixing ball is arranged in the middle position of the bottom layer of the air outlet seat, and the distance between the fixing ball and each group of air filling ports is kept consistent.

[0014] Preferably, the air inlet pipe is embedded in the furnace bin at an angle upward, and the air inlet pipe is arranged in a surrounding manner inside the furnace bin.

[0015] Preferably, an input pipe is embedded in the interior of the blast bin, and the other end of the input pipe is connected to an oxygen generator. The oxygen produced by the oxygen generator is transported to the interior of the blast bin through the input pipe, and the oxygen enters the interior of the furnace bin through the air intake pipe. The oxygen enters the furnace bin and is transported upward through the gap between the air outlet seat and the furnace bin, and the oxygen is input into the interior of the furnace bin at intervals.

[0016] Preferably, a connecting rod is connected to one side of the impact block close to the center of the floating rod, and the connecting rod connects the impact block and the three groups of supporting blocks together. One side of the impact block is embedded in the interior of the floating rod and is slidably connected to the floating rod.

[0017] Preferably, the protrusion of the inner wall of the movable sleeve moves upward along the inner spiral of the spiral groove, and the protrusion of the inner wall of the movable sleeve spirally rotates upward 360 degrees and passes through the support block once.

[0018] Preferably, the protrusion of the inner wall of the movable sleeve rotates to the top of the spiral groove to impact the impact block, and the movable sleeve slides to the lowest end of the spiral groove through the drop groove.

[0019] Preferably, the toggle plate and the drop groove are connected via a hinge shaft, and the protrusion of the inner wall of the movable sleeve moves upward along the spiral groove to hit the bottom end of the toggle plate to deflect.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The invention provides a self-adaptive vertical furnace structure for adding mixed charge, in which air is blown into a connecting pipe through an air inlet pipe, and the flow direction is changed through a fixed ball inside an air outlet seat, thereby generating a uniform upward airflow to slow down the falling speed of the crude copper, and utilizing a floating component to drive a movable sleeve to rotate and rise along a spiral groove through an airflow, and when reaching the top, it hits the crude copper to make it move actively, thereby accelerating the smelting process, introducing oxygen to accelerate the reaction, and making the crude copper fully smelted in the furnace to avoid falling quickly to the bottom of the furnace, thereby effectively solving various problems encountered in the traditional smelting process and realizing an efficient and stable metal smelting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the air inlet pipe and the input pipe of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the blast chamber and the furnace chamber of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the air outlet seat and the filter screen of the present invention;

[0026] Figure 5It is a structural schematic diagram of the connecting block and the air outlet seat of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the air inlet pipe and the furnace bin of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the connection block of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the floating rod and the movable sleeve of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the movable sleeve and the blade of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the impact block and the paddle piece of the present invention.

[0032] In the figure: 11, blast chamber; 12, combustion chamber; 13, partition net; 14, furnace chamber; 2, circulation component; 21, connecting block; 22, air outlet seat; 23, air filling port; 24, fixed ball; 25, air inlet pipe; 26, air inlet pipe; 27, filter net; 28, input pipe; 29, connecting pipe; 3, floating component; 31, floating rod; 32, movable sleeve; 33, blade; 34, vertical rod; 35, spiral groove; 36, falling groove; 37, support block; 38, impact block; 39, toggle piece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0035] Combination Figure 1-Figure 10 The invention discloses a self-adaptive vertical furnace structure for adding mixed charge, comprising a blast chamber 11, a furnace chamber 14 is embedded in the blast chamber 11, a combustion chamber 12 is connected to the top of the furnace chamber 14, and a partition net 13 is embedded in the top opening of the combustion chamber 12;

[0036] Nowadays, the charge of traditional vertical furnace is residual anode, which has little slag and can be directly put into the furnace. However, it also contains crude copper and broken copper. Crude copper has high impurities and slow fluidity, while broken copper tends to sink to the bottom directly after being put into the furnace. Traditional vertical furnaces cannot handle crude copper and broken copper. For example, after crude copper is put into the furnace, the copper falls vertically in the furnace and falls to the bottom before it is melted. The chute at the bottom of the vertical furnace has a certain impact. In order to avoid this problem, the copper is refined to speed up its reaction. In order to prevent the copper from falling too fast in the furnace and falling to the bottom of the furnace before it has time to react, this problem is solved by setting circulation component 2 and floating component 3:

[0037] The specific operations are as follows:

[0038] A circulation component 2 is connected to the inner wall of the furnace bin 14. The circulation component 2 includes a connecting block 21. The connecting block 21 is used to fix the air outlet seat 22 at the center position of the internal space of the furnace bin 14. The outer surface of the connecting block 21 is an arched portion, and the inner surface of the connecting block 21 is an arcuate portion. The arched portion and the arcuate portion are connected together. The middle position of the arcuate portion is bent upward, and the two sides are concave downward. When the gas is blown upward, when the gas contacts the arcuate portion of the connecting block 21, due to the upward bending and downward concave design, the gas can change the flow direction, thereby generating vortexes, thereby promoting the fluidity of the airflow. In addition, the arched portion of the connecting block 21 can play a guiding role, and the rough copper will not stay on the surface of the connecting block 21 when it hits the connecting block 21;

[0039] One side of the connecting block 21 is connected to an air outlet seat 22. The top diameter of the air outlet seat 22 is large, and the bottom diameter is small. The internal space of the air outlet seat 22 decreases step by step from top to bottom. The bottom end of the air outlet seat 22 is provided with a plurality of air filling ports 23. A fixed ball 24 is installed at the bottom end of the air outlet seat 22. The fixed ball 24 is arranged at the middle position of the bottom layer of the air outlet seat 22. The distance between the fixed ball 24 and each group of air filling ports 23 is kept consistent. A connecting pipe 29 is embedded in the air filling port 23. The end of the connecting pipe 29 away from the air filling port 23 is connected to an air inlet pipe 25. The air inlet pipe 25 is wrapped around the outer surface of the furnace bin 14. An air inlet pipe 26 is embedded in the furnace bin 14, and the air inlet pipe 26 is embedded in the furnace bin 14 in an inclined manner, and the air inlet pipe 26 is arranged around the furnace bin 14. A filter screen 27 is embedded in the top surface of the air outlet seat 22. An input pipe 28 is embedded in the blast bin 11, and the other end of the input pipe 28 is connected to an oxygen generator. The oxygen produced by the oxygen generator is transported to the inside of the blast bin 11 through the input pipe 28, and the oxygen enters the furnace bin 14 through the air inlet pipe 26. The oxygen enters the furnace bin 14 and is transported upward through the gap between the air outlet seat 22 and the furnace bin 14, and the oxygen is input into the furnace bin 14 at intervals.

[0040] In the smelting process of crude copper, oxygen is first added into the furnace, which can help combustion. In addition, in order to alleviate the excessively fast falling speed of copper, the circulation of air in the furnace is accelerated to improve the fluidity of copper in the furnace. First, in order to slow down the falling speed of crude copper in the furnace, air is blown into the inside of the connecting pipe 29 through the air inlet pipe 25. The blown air finally enters the inside of the air outlet seat 22 through the connecting pipe 29. Since a fixed ball 24 is provided at the center position of the air outlet seat 22, when the air hits the outer surface of the fixed ball 24, the flow direction of the air is changed, which avoids the arc surface design from transporting the air upward, and can isolate and distribute the flowing air through the spherical design of the fixed ball 24, so that the air flows upward more evenly. This is because when the air hits the outer surface of the fixed ball 24, the air flow direction will change due to the arc surface design of the fixed ball 24, thereby generating an upward force.

[0041] Specifically, when air flows through the surface of the fixed ball 24, due to the convex shape of the fixed ball 24, the air velocity increases when it is close to the surface of the fixed ball 24. The pressure is low where the velocity is high, so the pressure on the surface of the fixed ball 24 becomes small, while the pressure in the surrounding slower air flow area is relatively large. This pressure difference will generate an upward force to help the fixed ball 24 transport the airflow on the surface upward. The shape of the fixed ball 24 also helps to isolate and evenly distribute the flowing air. Since the fixed ball 24 is a symmetrical shape, the deviation of the air flow will be evenly distributed in all directions, which helps to stabilize the air flow and reduce the generation of turbulence and eddies. At the same time, the fixed ball 24 has no sharp corners, which is also conducive to the continuity and smoothness of the air flow;

[0042] When the air flows upward smoothly, it is blown out through the filter 27. When the flowing air blows upward, it will exert an upward force on the crude copper to slow down its falling speed. In addition, in order to facilitate the fluidity of the crude copper in the furnace, when the flowing air is blown out from the inside of the air outlet seat 22, the flow rate at the center of the combustion chamber 12 is large, and the flow rate near the edge of the combustion chamber 12 is slow. Since the resistance at the center of the combustion chamber 12 is relatively small, the air speed here is the largest, and the corresponding static pressure is also the smallest. In the area near the inner wall of the combustion chamber 12, due to the friction and relatively small flow cross-section, the air flow rate will decrease, and the static pressure will increase accordingly. At this time, the crude copper will be blown upward and gradually transferred to a position close to the edge of the combustion chamber 12, and finally fall to the bottom of the furnace through the gap between the air outlet seat 22 and the furnace bin 14;

[0043] In order to expand the flow of blister copper in the furnace and increase the smelting speed of blister copper, oxygen is introduced into the interior of the furnace bin 14 at intervals through the air inlet pipe 26. When oxygen is introduced, the reaction of copper is accelerated. In addition, the flow of oxygen will flow upward through the gap between the air outlet seat 22 and the furnace bin 14. The blowing of oxygen will also blow the falling blister copper, prompting the blister copper to move upward. When oxygen is introduced, the blowing of oxygen breaks the downward trend of the blister copper. At this time, the blister copper will be sucked into the air flow blown out from the air outlet seat 22 again, thereby realizing the cycle. Because the introduction of oxygen is intermittent, when oxygen is not introduced, the blister copper will fall to the bottom of the furnace through the gap between the air outlet seat 22 and the furnace bin 14 after smelting is completed.

[0044] In order to increase the time that the crude copper stays in the furnace, the floating assembly 3 is provided to stir the crude copper to promote the flow of the crude copper. The specific operation is as follows:

[0045] The top of the filter screen 27 is connected to a floating assembly 3, which includes a vertical rod 34. The top of the vertical rod 34 is connected to a floating rod 31. A spiral groove 35 is provided on the surface of the floating rod 31. A drop groove 36 is also provided on the surface of the floating rod 31. The drop groove 36 runs through the interior of the spiral groove 35. A striker block 38 is provided at the top of the drop groove 36. A connecting rod is connected to the side of the striker block 38 close to the center of the floating rod 31. The connecting rod connects the striker block 38 and three groups of supporting blocks 37 together. One side of the striker block 38 is embedded in the interior of the floating rod 31 and is slidably connected to the floating rod 31. The bottom end of the striker block 38 is connected to the supporting block 37. The bottom end of the drop groove 36 is connected to a toggle piece 39. The outer surface is sleeved with a movable sleeve 32, and the protrusion of the inner wall of the movable sleeve 32 moves upward along the inner spiral of the spiral groove 35. The protrusion of the inner wall of the movable sleeve 32 spirally rotates upward 360 degrees and passes through a support block 37. The protrusion of the inner wall of the movable sleeve 32 rotates to the top of the spiral groove 35 to impact the impact block 38. The movable sleeve 32 slides to the lowest end of the spiral groove 35 through the drop groove 36, and the protrusion of the inner wall of the movable sleeve 32 is embedded in the interior of the spiral groove 35. The outer surface of the movable sleeve 32 is fixedly connected with a blade 33. The toggle piece 39 and the drop groove 36 are connected by a hinge shaft. The protrusion of the inner wall of the movable sleeve 32 moves upward along the spiral groove 35 to impact the bottom end of the toggle piece 39 for deflection.

[0046] When the airflow transported in the air outlet seat 22 blows onto the blades 33, the blades 33 drive the movable sleeve 32 to rotate. When the movable sleeve 32 and the blades 33 rotate, they move upward along the spiral groove 35. As the movable sleeve 32 and the blades 33 rotate until they reach the top of the spiral groove 35, the protrusion of the inner wall of the movable sleeve 32 hits the impact block 38, so that the impact block 38 fits on one side wall of the drop groove 36. At this time, the protrusion on the movable sleeve 32 falls into the inside of the drop groove 36 until it falls to the bottom of the drop groove 36. When the movable sleeve 32 and the blades 33 rotate, the flowing air will continue to blow the movable sleeve 32 and the blades 33 to rotate, and continue to move upward along the spiral groove 35. When the movable sleeve 32 moves upward, the protrusion of the inner wall of the movable sleeve 32 will push the toggle piece 39. When the toggle piece 39 is deflected, it will toggle the impact block 38 back to the initial position. This cycle is repeated. When the movable sleeve 32 and the blades 33 rotate, they will continuously hit the crude copper, which makes the crude copper more active in the furnace and accelerates the smelting of the crude copper. In addition, when it hits the crude copper, the loose crude copper can be decomposed to accelerate the reaction.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixed charge adding adaptive vertical furnace structure, comprising a blast chamber (11), characterized in that: A furnace bin (14) is embedded in the blast bin (11), the top of the furnace bin (14) is connected to the combustion chamber (12), and a partition net (13) is embedded in the top opening of the combustion chamber (12); A circulation component (2) is connected to the inner wall of the furnace bin (14), and the circulation component (2) includes a connecting block (21), one side of the connecting block (21) is connected to an air outlet seat (22), a plurality of air inlets (23) are provided at the bottom end of the air outlet seat (22), a fixing ball (24) is installed at the bottom end of the air outlet seat (22), a connecting pipe (29) is embedded in the air inlet (23), an end of the connecting pipe (29) away from the air inlet (23) is connected to an air inlet pipe (25), the air inlet pipe (25) is wrapped around the outer surface of the furnace bin (14), an air inlet pipe (26) is embedded in the furnace bin (14), and a filter screen (27) is embedded in the top surface of the air outlet seat (22); The top of the filter screen (27) is connected to a floating assembly (3), the floating assembly (3) comprises a vertical rod (34), the top of the vertical rod (34) is connected to a floating rod (31), a spiral groove (35) is provided on the surface of the floating rod (31), a drop groove (36) is also provided on the surface of the floating rod (31), the drop groove (36) penetrates the interior of the spiral groove (35), an impact block (38) is provided at the top end of the drop groove (36), a support block (37) is connected to the bottom end of the impact block (38), a toggle plate (39) is connected to the bottom end of the drop groove (36), a movable sleeve (32) is sleeved on the outer surface of the floating rod (31), a protruding portion of the inner wall of the movable sleeve (32) is embedded in the interior of the spiral groove (35), and a blade (33) is fixedly connected to the outer surface of the movable sleeve (32); The connecting block (21) is used to fix the air outlet seat (22) at the central position of the internal space of the furnace bin (14); the outer surface of the connecting block (21) is an arched portion, and the inner surface of the connecting block (21) is an arcuate portion; the arched portion and the arcuate portion are connected together, and the middle position of the arcuate portion is bent upward, and the two sides are concave downward; An input pipe (28) is embedded in the interior of the blast chamber (11), and the other end of the input pipe (28) is connected to an oxygen generator. Oxygen produced by the oxygen generator is transported to the interior of the blast chamber (11) through the input pipe (28), and the oxygen enters the interior of the furnace chamber (14) through the air inlet pipe (26). The oxygen enters the furnace chamber (14) and is transported upward through the gap between the air outlet seat (22) and the furnace chamber (14), and the oxygen is input into the interior of the furnace chamber (14) at intervals.

2. The self-adaptive vertical furnace structure for adding mixed charge according to claim 1, characterized in that: The top end of the air outlet seat (22) has a large diameter, while the bottom end has a small diameter, and the internal space of the air outlet seat (22) decreases step by step from top to bottom.

3. The self-adaptive vertical furnace structure for adding mixed charge according to claim 2, characterized in that: The fixed ball (24) is arranged at the middle position of the bottom layer of the air outlet seat (22), and the distance between the fixed ball (24) and each group of air inlet ports (23) is kept consistent.

4. The self-adaptive vertical furnace structure for adding mixed charge according to claim 1, characterized in that: The air intake pipe (26) is embedded in the furnace bin (14) in an inclined manner and upward, and the air intake pipe (26) is arranged in a surrounding manner in the furnace bin (14).

5. The self-adaptive vertical furnace structure for adding mixed charge according to claim 1, characterized in that: A connecting rod is connected to one side of the impact block (38) close to the center of the floating rod (31), and the connecting rod connects the impact block (38) and the three groups of supporting blocks (37) together. One side of the impact block (38) is embedded in the interior of the floating rod (31) and is slidably connected to the floating rod (31).

6. The self-adaptive vertical furnace structure for adding mixed charge according to claim 5, characterized in that: The protrusion on the inner wall of the movable sleeve (32) moves upward along the inner spiral of the spiral groove (35), and the protrusion on the inner wall of the movable sleeve (32) rotates upward 360 degrees and passes through the support block (37) once.

7. The self-adaptive vertical furnace structure for adding mixed charge according to claim 6, characterized in that: The protruding portion of the inner wall of the movable sleeve (32) rotates to the top of the spiral groove (35) to impact the impact block (38), and the movable sleeve (32) slides to the lowest end of the spiral groove (35) through the drop groove (36).

8. The self-adaptive vertical furnace structure for adding mixed charge according to claim 7, characterized in that: The toggle plate (39) and the drop groove (36) are connected via a hinge shaft, and the protrusion on the inner wall of the movable sleeve (32) moves upward along the spiral groove (35) to hit the bottom end of the toggle plate (39) to deflect.

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